Filter



(No Model.)

R. L KESTER.

FILTER.

Paten'ted June 17, 1884.`

` of the United States,

' UNITED STATES PATENT OFFICE.

ROBET L'IVINGsToN KESTER, on PIHLADELPHIA, PENNSYLVANIA.

FILTER.

SPECIPICATION forming part of Letters Patent No. 3oo,e2, dated .Tune 17, 1884.

4 Application filed November 3, 18183. (Ne model.)

To all whom, it may concern:

Be it known that I, R. L. KESTER, a citizen residing at Philadelphia, in the County of Philadelphia and State ol' Pennsylvania, have invented certain new and useful Improvements in Filters; and I do declare the following to be a full, clear, and exact 'description of the invention, such as will enable others skilled in: the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and 'to letters or figures of reference marked thereon, which form a part of this specificatio'n.

The drawingis a representation oi' ajverti:

cal sectional View.

This invention has relatiou to water-filters;

and it consists in the construction and. novcl arrangement of devices, as will be hereinafter fully described, and particularly pointed out in the claim appended.

Referring by letter to the ccompanying drawing, A designates the outer casng of the dplex water-filter. a

B indicates the inncr tapering pot.

C designates the conve top, and D the concave bottom, both of which are' smaller' in diameter than the cylindrical outer casing, A. The cylinder may be nounted on either three or four legs, E, as maybe desired.

F designates the nlet-pipe with a stop` cock; which enters at the bottom 'of-the filter.

Y is a waste-pipe with stop-cock G near the i middle of the bottom of the filter.

I designates a'perforated plate', the edge of which rests on the shonlders I' of the 'coneave bottom D. i

K isa. smaller perforated plateresting on a shoulder near' the bottom of the taperng pot B.

H designates the stuh'ing-box at the waterjoint leading from the filter.

J is a lead pipe-eonnectingwith the soldering-nipple at the bottom of the tapering pot.

M is a perforated plate 'having a central opening, N, of the same size as the mouth of the tapering pot. This perforated plate M covers the space between the mouth of the* tapering pot and the inner wall of the outer casiug.

ratcd Plato. Upon this layer is a thinner -layer of finer quartz, and above this and extending 'early to the top' of the tapcring pot is a layer of rotten-stone, and -npon this is a finishing layer of fine or' granulated quartz or flsnd. t This last layer is eovered by the 'upper perforated plate. The taperng-pot is filled from its perforated bottom up with prepared charcoal. The water enters through' the inlet-pipe at'the bottom of the filter, and pass'es 'np through the filtering material, around the outside of the taper'ngpohand then' down through the charooal and out through the out let p'ipe, thus'fiitering the water through two filters in its passage.

To wash the filters the stop-cock in the inlet-pipe is closed and the stop-cock in the wash-out pipe is opened, and the water passes through the outer filter from above downward and out at the waste-pi'pe.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

In a water-filter, 'the eombination, with the outer casing having the convex top and con-' cave bottom, the upper and lower plates, and the inlet-ppe, of the inner tapering pot hav ing the perforated bottom plate and a connection' at its lower end with the otlet-pipe and filtering material both within and around it, substantially as specified.

In testinony whereof I aiii): my sigunturcin presence oftwo witnesses.

(imas. H u [STLE y, ALBERT II. LADNER.. 

